Eroare de compilare: main.cpp:14:18: error: 'int log2 [400028]' redeclared as different kind of entity 14 | int log2[4 * NMAX]; | ^ In file included from /usr/include/features.h:461, from /usr/include/x86_64-linux-gnu/c++/10/bits/os_defines.h:39, from /usr/include/x86_64-linux-gnu/c++/10/bits/c++config.h:522, from /usr/include/c++/10/cassert:43, from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:33, from main.cpp:1: /usr/include/x86_64-linux-gnu/bits/mathcalls.h:133:1: note: previous declaration 'double log2(double)' 133 | __MATHCALL (log2,, (_Mdouble_ __x)); | ^~~~~~~~~~ main.cpp: In function 'void precalc_log2()': main.cpp:30:9: error: invalid types '<unresolved overloaded function type>[int]' for array subscript 30 | log2[1] = 0; | ^ main.cpp:33:13: error: invalid types '<unresolved overloaded function type>[int]' for array subscript 33 | log2[i] = log2[i/2] + 1; | ^ main.cpp:33:24: error: invalid types '<unresolved overloaded function type>[int]' for array subscript 33 | log2[i] = log2[i/2] + 1; | ^ main.cpp: In function 'void init_rmq()': main.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(int i = 0; i < euler.size(); i++) { | ~~^~~~~~~~~~~~~~ main.cpp:59:45: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 59 | for(int i = 0; i + (1 << level) / 2 < euler.size(); i++) { | ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:104:15: error: reference to 'cin' is ambiguous 104 | int n, m; cin >> n >> m; | ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/10/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:98:10: note: 'std::ifstream cin' 98 | ifstream cin ("lca.in"); | ^~~ main.cpp:106:16: error: reference to 'cin' is ambiguous 106 | int x; cin >> x; | ^~~ In file included from /usr/include/x86_64-linux-gnu/c++/10/bits/stdc++.h:75, from main.cpp:1: /usr/include/c++/10/iostream:60:18: note: candidates are: 'std::istream std::cin' 60 | extern istream cin; /// Linked to standard input | ^~~ main.cpp:98:10: note: 'std::ifstream cin' Non zero exit status: 1